Wozniacki must be 'more aggressive', says ex-coach

Caroline Wozniacki must become ''more aggressive'' if the Danish tennis player wants to top the women's rankings again, according to her former coach.

''Caroline can recover her No. 1 ranking ... But she must be more aggressive,'' Ricardo Sanchez told Spanish sports daily Marca. ''I tried (to help her) but they wouldn't let me. Wozniacki should be a race horse, not a pack horse.''

Sanchez was fired after two months as Wozniacki's coach following her Australian Open quarterfinal exit that cost her the top ranking. Wozniacki remains without a Grand Slam title and is now ranked fourth.

Sanchez, who has also coached another former No. 1 Jelena Jankovic, was quoted as saying he felt ''deceived'' by Wozniacki's father Piotr, who has now returned to coaching his daughter on his own.

''I was told that I would be free to coach her as I wished, and then I was given very little margin to do so,'' Sanchez said. ''In just five weeks I went from being a coach to being just a consultant.

''Her father put together his own training system, and I was pushed into the background.''

Sanchez did not rule out returning to coach Jankovic, but said he would only do so if he is guaranteed ''the freedom that I have always asked for.''